ObservableCollection <AddFoodItemViewModel> convertFoodItemListToObs(List <FoodItem> lst, MEALTIME mt)
{
ObservableCollection <AddFoodItemViewModel> result = new ObservableCollection <AddFoodItemViewModel>();
AddFoodItemViewModel foodItemVm;
foreach (var item in lst)
{
foodItemVm = new AddFoodItemViewModel()
{
FoodNameProperty = item.Name, FoodKey = item.Key, FoodAmountProperty = item.AmountGm.ToString(), Calories100Gm = item.Calories100G, CaloriesProperty = (item.Calories100G * item.AmountGm).ToString(), GMProperty = (100 * item.AmountGm).ToString() + "g"
};
switch (mt)
{
case MEALTIME.BREAKFAST: foodItemVm.PropertyChanged += PropertyChangedFoodItemBreakfast;
break;
case MEALTIME.BRUNCH:
foodItemVm.PropertyChanged += PropertyChangedFoodItemBrunch;
break;
case MEALTIME.DINNER:
foodItemVm.PropertyChanged += PropertyChangedFoodItemDinner;
break;
case MEALTIME.SNACKS:
foodItemVm.PropertyChanged += PropertyChangedFoodItemSnacks;
break;
}
result.Add(foodItemVm);
}
return(result);
}
private void PropertyChangedFoodItemSnacks(object sender, PropertyChangedEventArgs e)
{
AddFoodItemViewModel addFoodItemViewModel = (sender as AddFoodItemViewModel);
switch (e.PropertyName)
{
case "deleteItem":
SnacksCaloriesProperty = (float.Parse(SnacksCaloriesProperty) - float.Parse(addFoodItemViewModel.CaloriesProperty)).ToString();
updateDownItemTotalComponents(addFoodItemViewModel);
SnacksListProperty.Remove(addFoodItemViewModel);
break;
case "FoodAmountPropertyUp": //the amount of the fooditem increased
if (SnacksCaloriesProperty != null && (sender as AddFoodItemViewModel).FoodAmountProperty != null)
{
SnacksCaloriesProperty = (float.Parse(SnacksCaloriesProperty) + ((sender as AddFoodItemViewModel).Calories100Gm)).ToString();
updateUp100GmTotalComponents(addFoodItemViewModel);
}
break;
case "FoodAmountProperty": //the amount of the item is decreased
if (SnacksCaloriesProperty != null && (sender as AddFoodItemViewModel).FoodAmountProperty != null)
{
SnacksCaloriesProperty = (float.Parse(SnacksCaloriesProperty) - ((sender as AddFoodItemViewModel).Calories100Gm)).ToString();
updateDown100GmTotalComponents(addFoodItemViewModel);
}
break;
default:
break;
}
}
private void updateUp100GmTotalComponents(AddFoodItemViewModel addFoodItemViewModel)
{
TotalCarbsProperty = (float.Parse(TotalCarbsProperty) + addFoodItemViewModel.Carbs100Gm).ToString();
TotalProteinsProperty = (float.Parse(TotalProteinsProperty) + addFoodItemViewModel.Proteins100Gm).ToString();
TotalFatsProperty = (float.Parse(TotalFatsProperty) + addFoodItemViewModel.Fats100Gm).ToString();
TotalCaloriesProperty = (float.Parse(TotalCaloriesProperty) + addFoodItemViewModel.Calories100Gm).ToString();
}
private void updateDownItemTotalComponents(AddFoodItemViewModel addFoodItemViewModel)
{
TotalCarbsProperty = (float.Parse(TotalCarbsProperty) - (addFoodItemViewModel.Carbs100Gm) * (int.Parse(addFoodItemViewModel.FoodAmountProperty))).ToString();
TotalProteinsProperty = (float.Parse(TotalProteinsProperty) - (addFoodItemViewModel.Proteins100Gm) * (int.Parse(addFoodItemViewModel.FoodAmountProperty))).ToString();
TotalFatsProperty = (float.Parse(TotalFatsProperty) - (addFoodItemViewModel.Fats100Gm) * (int.Parse(addFoodItemViewModel.FoodAmountProperty))).ToString();
TotalCaloriesProperty = (float.Parse(TotalCaloriesProperty) - (addFoodItemViewModel.Calories100Gm) * (int.Parse(addFoodItemViewModel.FoodAmountProperty))).ToString();
}
private static void OnSelectedFoodItemSnacks(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
AddDailyFoodViewModel addDailyFoodViewModel = d as AddDailyFoodViewModel;
ObservableCollection <AddFoodItemViewModel> tmpLst;
if (addDailyFoodViewModel.SnacksListProperty == null)
{
tmpLst = new ObservableCollection <AddFoodItemViewModel>();
}
else
{
tmpLst = addDailyFoodViewModel.SnacksListProperty;
}
AddFoodItemViewModel addFoodItemViewModel = new AddFoodItemViewModel();
addFoodItemViewModel.PropertyChanged += addDailyFoodViewModel.PropertyChangedFoodItemSnacks;
addFoodItemViewModel.FoodNameProperty = ((FoodItem)e.NewValue).Name;
addFoodItemViewModel.FoodKey = ((FoodItem)e.NewValue).Key;
addFoodItemViewModel.Calories100Gm = (addDailyFoodViewModel.addDailyFoodModel.getFoodDetails(((FoodItem)e.NewValue).Key)).Calories;
addFoodItemViewModel.Carbs100Gm = (addDailyFoodViewModel.addDailyFoodModel.getFoodDetails(((FoodItem)e.NewValue).Key)).Carbohydrate;
addFoodItemViewModel.Proteins100Gm = (addDailyFoodViewModel.addDailyFoodModel.getFoodDetails(((FoodItem)e.NewValue).Key)).Protien;
addFoodItemViewModel.Fats100Gm = (addDailyFoodViewModel.addDailyFoodModel.getFoodDetails(((FoodItem)e.NewValue).Key)).Fats;
tmpLst.Add(addFoodItemViewModel);
addDailyFoodViewModel.SnacksListProperty = tmpLst;
}
